134278785 has 24 divisors (see below), whose sum is σ = 233970984. Its totient is φ = 71239680.

The previous prime is 134278759. The next prime is 134278789. The reversal of 134278785 is 587872431.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 134165889 = 336^2 + 11583^2 .

It is not a de Polignac number, because 134278785 - 2⁶ = 134278721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 134278785.

It is not an unprimeable number, because it can be changed into a prime (134278789) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 955 + ... + 16415.

It is an arithmetic number, because the mean of its divisors is an integer number (9748791).

Almost surely, 2^134278785 is an apocalyptic number.

134278785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134278785 is a deficient number, since it is larger than the sum of its proper divisors (99692199).

134278785 is a wasteful number, since it uses less digits than its factorization.

134278785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15665 (or 15662 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 134278785 is about 11587.8723241154. The cubic root of 134278785 is about 512.0776262205.

The spelling of 134278785 in words is "one hundred thirty-four million, two hundred seventy-eight thousand, seven hundred eighty-five".